A376361 - cp's OEIS frontend

A376361 The number of distinct prime factors of the powerful numbers.

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	2
10	1
11	1
12	2
13	1
14	2
15	2
16	1
17	1
18	1
19	2
20	1
21	2
22	2
23	2
24	2
25	1
26	1
27	2
28	1
29	2
30	1
31	1
32	2
33	2
34	2
35	2
36	2
37	2
38	1
39	1
40	2
41	1
42	2
43	2
44	2
45	1
46	2
47	2
48	1
49	2
50	3
51	1
52	2
53	2
54	2
55	1
56	2
57	2
58	2
59	2
60	2
61	2
62	2
63	1
64	2
65	1
66	2
67	2
68	2
69	2
70	2
71	1
72	2
73	3
74	3
75	1
76	2
77	2
78	2
79	2
80	1
81	2
82	1
83	1
84	1
85	2
86	2
87	1
88	2
89	2
90	2
91	3
92	2
93	2
94	1
95	2
96	2
97	2
98	2
99	1
100	2
101	2
102	2
103	2
104	2
105	2

[0, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 2, 2, 1, 1, 1, 2, 1, 2, 2, 2, 2, 1, 1, 2, 1, 2, 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, 2, 1, 2, 2, 2, 1, 2, 2, 1, 2, 3, 1, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 2, 2, 2, 2, 2, 1, 2, 3, 3, 1, 2, 2, 2, 2, 1, 2, 1, 1, 1, 2, 2, 1, 2, 2, 2, 3, 2, 2, 1, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2]

cp's OEIS Frontend

A376361 The number of distinct prime factors of the powerful numbers.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	2
10	1
11	1
12	2
13	1
14	2
15	2
16	1
17	1
18	1
19	2
20	1
21	2
22	2
23	2
24	2
25	1
26	1
27	2
28	1
29	2
30	1
31	1
32	2
33	2
34	2
35	2
36	2
37	2
38	1
39	1
40	2
41	1
42	2
43	2
44	2
45	1
46	2
47	2
48	1
49	2
50	3
51	1
52	2
53	2
54	2
55	1
56	2
57	2
58	2
59	2
60	2
61	2
62	2
63	1
64	2
65	1
66	2
67	2
68	2
69	2
70	2
71	1
72	2
73	3
74	3
75	1
76	2
77	2
78	2
79	2
80	1
81	2
82	1
83	1
84	1
85	2
86	2
87	1
88	2
89	2
90	2
91	3
92	2
93	2
94	1
95	2
96	2
97	2
98	2
99	1
100	2
101	2
102	2
103	2
104	2
105	2

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	2
10	1
11	1
12	2
13	1
14	2
15	2
16	1
17	1
18	1
19	2
20	1
21	2
22	2
23	2
24	2
25	1
26	1
27	2
28	1
29	2
30	1
31	1
32	2
33	2
34	2
35	2
36	2
37	2
38	1
39	1
40	2
41	1
42	2
43	2
44	2
45	1
46	2
47	2
48	1
49	2
50	3
51	1
52	2
53	2
54	2
55	1
56	2
57	2
58	2
59	2
60	2
61	2
62	2
63	1
64	2
65	1
66	2
67	2
68	2
69	2
70	2
71	1
72	2
73	3
74	3
75	1
76	2
77	2
78	2
79	2
80	1
81	2
82	1
83	1
84	1
85	2
86	2
87	1
88	2
89	2
90	2
91	3
92	2
93	2
94	1
95	2
96	2
97	2
98	2
99	1
100	2
101	2
102	2
103	2
104	2
105	2

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	2
10	1
11	1
12	2
13	1
14	2
15	2
16	1
17	1
18	1
19	2
20	1
21	2
22	2
23	2
24	2
25	1
26	1
27	2
28	1
29	2
30	1
31	1
32	2
33	2
34	2
35	2
36	2
37	2
38	1
39	1
40	2
41	1
42	2
43	2
44	2
45	1
46	2
47	2
48	1
49	2
50	3
51	1
52	2
53	2
54	2
55	1
56	2
57	2
58	2
59	2
60	2
61	2
62	2
63	1
64	2
65	1
66	2
67	2
68	2
69	2
70	2
71	1
72	2
73	3
74	3
75	1
76	2
77	2
78	2
79	2
80	1
81	2
82	1
83	1
84	1
85	2
86	2
87	1
88	2
89	2
90	2
91	3
92	2
93	2
94	1
95	2
96	2
97	2
98	2
99	1
100	2
101	2
102	2
103	2
104	2
105	2